the level cap increase could allow to regulate who wears what gear....just as at level 45 you can't just throw on Darklight...you have to wait til 50. with 50 being the max level, if you continued to add higher gear, someone who leveled another class to 50 could just throw on this iLVL130 gear. you could raise the cap to allow this iLVL 130 to be worn by lvl 80 or higher for example.